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US 11,994,291 B2Granted
Performance factor for a combustion liner
AssigneeGeneral Electric Company
InventorsHiranya Nath, Ravindra Shankar Ganiger, Ajoy Patra, Rajendra Wankhade
Life of this patent
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Abstract
An annular combustor includes a combustion liner defining a combustion chamber, the combustion liner having an outer liner and an inner liner and a plurality of dimples in the combustion liner. The combustion liner is characterized by a performance factor greater than or equal to one and less than or equal to seven. An engine includes the annular combustor.
Claims18
An annular combustor comprising:
- a combustion liner defining a combustion chamber, the combustion liner having an outer liner and an inner liner;
- and
- a plurality of dimples in the combustion liner, the plurality of dimples having at least one outer liner dimple in the outer liner and at least one inner liner dimple in the inner liner,
- wherein the combustion liner is characterized by a performance factor greater than or equal to one and less than or equal to seven, the performance factor defined by:
- h
- ′
- h
- ×
- ∅
- θ
- ×
- DP
- D
- ×
- 100
- ,
- where h′ is the radial distance between the at least one outer liner dimple and the at least one inner liner dimple,
- h is the radial distance between the outer liner and the inner liner at the same axial location as the at least one outer liner dimple and the at least one inner liner dimple and at a different circumferential location with no dimple of the plurality of dimples,
- Ø is a dimple angle of the dimple defined by a first radial axis extending through a first edge of the at least one outer liner dimple or the at least one inner liner dimple and a second radial axis extending through a second edge of the at least one outer liner dimple or the at least one inner liner dimple,
- θ is a fuel nozzle angle, and
- DP
- P
- is a working fluid pressure drop.
20 more elements
An annular combustor comprising:
- a combustion liner defining a combustion chamber, the combustion liner having an outer liner and an inner liner;
- and
- a plurality of dimples in the combustion liner, the plurality of dimples having at least one dimple in the outer liner or in the inner liner,
- wherein the combustion liner is characterized by a performance factor greater than or equal to one and less than or equal to seven, the performance factor defined by:
- h
- ′
- h
- ×
- ∅
- θ
- ×
- DP
- D
- ×
- 100
- ,
- where h′ is the radial distance between the at least one dimple and an inner surface of the other of the outer liner or the inner liner,
- h is the radial distance between the outer liner and the inner liner at the same axial location as the at least one dimple and at a different circumferential location with no dimple of the plurality of dimples,
- Ø is a dimple angle of the dimple defined by a first radial axis extending through a first edge of the at least one dimple and a second radial axis extending through a second edge of the at least one dimple,
- θ is a fuel nozzle angle, and
- DP
- P
- is a working fluid pressure drop.
20 more elements
Dependencies are inferred from the claim text.